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Commit db9afe2f authored by Jonathan Cameron's avatar Jonathan Cameron Committed by Greg Kroah-Hartman
Browse files

staging:iio:adc:ad7816 move from old to current event handling. 



I'm not sure what the event is and am very much against the dodgy
hack to give it a code. However for now, lets just stop it using
the deprecated core handling so we can move on.

Signed-off-by: default avatarJonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 724cf92d

drivers/staging/iio/adc/ad7816.c

+15 −47
Original line number Diff line number Diff line
@@ -8,14 +8,12 @@ 


#include <linux/interrupt.h>

#include <linux/gpio.h>

#include <linux/workqueue.h>

#include <linux/device.h>

#include <linux/kernel.h>

#include <linux/slab.h>

#include <linux/sysfs.h>

#include <linux/list.h>

#include <linux/spi/spi.h>

#include <linux/rtc.h>



#include "../iio.h"

#include "../sysfs.h"
@@ -47,8 +45,6 @@ struct ad7816_chip_info { 
	const char *name;

	struct spi_device *spi_dev;

	struct iio_dev *indio_dev;

	struct work_struct thresh_work;

	s64 last_timestamp;

	u16 rdwr_pin;

	u16 convert_pin;

	u16 busy_pin;
@@ -266,33 +262,14 @@ static const struct attribute_group ad7816_attribute_group = { 


#define IIO_EVENT_CODE_AD7816_OTI    IIO_BUFFER_EVENT_CODE(0)



static void ad7816_interrupt_bh(struct work_struct *work_s)

static irqreturn_t ad7816_event_handler(int irq, void *private)

{

	struct ad7816_chip_info *chip =

		container_of(work_s, struct ad7816_chip_info, thresh_work);



	enable_irq(chip->spi_dev->irq);



	iio_push_event(chip->indio_dev, 0,

	iio_push_event(private, 0,

		       IIO_EVENT_CODE_AD7816_OTI,

			chip->last_timestamp);

}



static int ad7816_interrupt(struct iio_dev *dev_info,

		int index,

		s64 timestamp,

		int no_test)

{

	struct ad7816_chip_info *chip = dev_info->dev_data;



	chip->last_timestamp = timestamp;

	schedule_work(&chip->thresh_work);



	return 0;

		       iio_get_time_ns());

	return IRQ_HANDLED;

}



IIO_EVENT_SH(ad7816, &ad7816_interrupt);



static ssize_t ad7816_show_oti(struct device *dev,

		struct device_attribute *attr,

		char *buf)
@@ -352,11 +329,11 @@ static inline ssize_t ad7816_set_oti(struct device *dev, 
	return len;

}



IIO_EVENT_ATTR_SH(oti, iio_event_ad7816,

static IIO_DEVICE_ATTR(oti, S_IRUGO | S_IWUSR,

		       ad7816_show_oti, ad7816_set_oti, 0);



static struct attribute *ad7816_event_attributes[] = {

	&iio_event_attr_oti.dev_attr.attr,

	&iio_dev_attr_oti.dev_attr.attr,

	NULL,

};
@@ -438,23 +415,14 @@ static int __devinit ad7816_probe(struct spi_device *spi_dev) 


	if (spi_dev->irq) {

		/* Only low trigger is supported in ad7816/7/8 */

		ret = iio_register_interrupt_line(spi_dev->irq,

				chip->indio_dev,

				0,

		ret = request_threaded_irq(spi_dev->irq,

					   NULL,

					   &ad7816_event_handler,

					   IRQF_TRIGGER_LOW,

				chip->name);

					   chip->name,

					   chip->indio_dev);

		if (ret)

			goto error_unreg_dev;



		/*

		 * The event handler list element refer to iio_event_ad7816.

		 * All event attributes bind to the same event handler.

		 * So, only register event handler once.

		 */

		iio_add_event_to_list(&iio_event_ad7816,

				&chip->indio_dev->interrupts[0]->ev_list);



		INIT_WORK(&chip->thresh_work, ad7816_interrupt_bh);

	}



	dev_info(&spi_dev->dev, "%s temperature sensor and ADC registered.\n",
@@ -485,7 +453,7 @@ static int __devexit ad7816_remove(struct spi_device *spi_dev) 


	dev_set_drvdata(&spi_dev->dev, NULL);

	if (spi_dev->irq)

		iio_unregister_interrupt_line(indio_dev, 0);

		free_irq(spi_dev->irq, indio_dev);

	iio_device_unregister(indio_dev);

	iio_free_device(chip->indio_dev);

	gpio_free(chip->busy_pin);